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Kewanee Lake Water Temperature

Kewanee Lake in Seminole County, Florida typically sits around 86°F at the surface in August — warmest in Aug (~86°F) and coldest in Feb (~66°F). That is a typical value for the month, not a live reading.

Typical in August
86°F
Warm
Summer average
85°F
Warmest (Aug)
86°F
Coldest (Feb)
66°F

Typical water temperature by month

Jan
Feb
66°
Mar
Apr
May
83°
Jun
83°
Jul
Aug
86°
Sep
Oct
Nov
74°
Dec

Typical surface water temperature by month, from 55 field readings (20102025) via the EPA Water Quality Portal. Months with too few readings are left blank.

Is Kewanee Lake warm enough to swim?

At its summer peak (~85°F): Warm

Very comfortable for swimming. Warm surface water can also favor blue-green algae in nutrient-rich lakes, so check for advisories before you go in.

Want more than temperature? Kewanee Lake water quality: clarity, algae, phosphorus, depth, fish species, and current advisories, all on one page.

Where to stay near Kewanee Lake

Planning a swim or lake trip? Compare cabins, lodges, and vacation rentals near Kewanee Lake — live availability and prices. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Kewanee Lake

Prices for Sep 18–20, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

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Frequently asked questions

What is the water temperature of Kewanee Lake?

Kewanee Lake typically sits around 86°F at the surface in August, from 55 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.

When is Kewanee Lake warmest?

Surface water at Kewanee Lake is typically warmest in August, reaching about 86°F. Lake surface temperature lags air temperature by several weeks, so the warmest water usually arrives in mid-to-late summer even though the hottest air can come earlier.

Is Kewanee Lake warm enough to swim?

At its typical summer peak of about 85°F, Kewanee Lake rates as "warm" for swimming. Very comfortable for swimming. Warm surface water can also favor blue-green algae in nutrient-rich lakes, so check for advisories before you go in.

Where does this Kewanee Lake water temperature data come from?

Every temperature on this page is a typical (climatological) value computed from real surface-water field readings collected by state and federal agencies and published through the EPA Water Quality Portal — 55 readings from 1 monitoring station between 2010 and 2025. They describe what is typical for each month, not the temperature right now.

About this data

Water temperatures are a climatology — the typical value for each month, averaged from real surface-water field readings collected by state and federal agencies and published through the EPA Water Quality Portal. They tell you what to expect, not the temperature at this moment. Actual conditions vary with recent weather, depth, and time of day.